X0202 4 2005-12-16 0001126328 PRINCIPAL FINANCIAL GROUP INC PFG 0001166868 GERSIE MICHAEL H 711 HIGH STREET DES MOINES IA 50392 0 1 0 0 Executive Vice President/CFO Common Stock 2005-12-16 4 A 0 165 0 A 34119 D Common Stock 2005-12-16 4 A 0 28 0 A 3453 I By Spouse Common Stock 450 I By 401(k) Plan Common Stock 223 I By Spouse's 401(k) Plan Performance Units 2005-12-16 4 A 0 43 A Common Stock 43 3328 D Performance Units 2005-12-16 4 A 0 12 A Common Stock 12 955 I By Spouse Phantom Stock Units 2005-12-16 4 A 0 1.4 49.72 A Common Stock 1.4 107.1 D Phantom Stock Units Common Stock 0 1.4 I By Spouse Grant of restricted stock units. Includes 2,326 shares acquired pursuant to the Principal Financial Group, Inc. Employee Stock Purchase Plan. Includes 1,701 shares acquired pursuant to the Principal Financial Group, Inc. Employee Stock Purchase Plan. Security converts to common stock on a one-for-one basis. The reported performance units were acquired pursaunt to the Principal Financial Group Long-Term Performance Plan. Units under the Plan will be settled in cash or stock within a five-year period from the date of vesting. Corrects prior inadvertent mathematical error. The reported phantom stock units were acquired pursuant to the Principal Select Savings Excess Plan and may be transferred at any time into another investment alternative under the Plan. Interests under the Plan will be settled upon the reporting person's retirement or other termination of service. Joyce N. Hoffman, by Power of Attorney 2005-12-20